R Series Pleated Polyester Cartridges


• Pleated design maximizes dirt-holding capacity.
• Versatile and reusable, allowing for a variety of uses.
• Durable polyester media is bacteria and chemical resistant.
• Nominal 30-micron rating (R-30) and nominal 50-micron rating (R-50).


R Series cartridges are manufactured from a durable, non-woven and reusable polyester fabric that is suitable for a wide range of filtration uses.

The media is pleated around a polypropylene core for added strength, and the ends are immersed in a thermo-setting vinyl plastisol. Embedding and sealing each end of the pleat block in this fashion fuses the three components, together forming a unitized end cap and gasket. The overlap seam is sonically welded to reduce internal bypass, improving filtration efficiency.

The standard 9-3/4” length cartridge has more than four square feet of polyester fabric, while the larger Big Blue® version has more than 16 square feet. The media is pleated to maximize dirt-holding capacity and extend the time period between changes or cleaning.
R Series cartridges are resistant to both bacteria and chemical attack making them suitable for a variety of residential, commercial and industrial applications.